182019201989 has 2 divisors, whose sum is σ = 182019201990. Its totient is φ = 182019201988.

The previous prime is 182019201979. The next prime is 182019202007. The reversal of 182019201989 is 989102910281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163553109889 + 18466092100 = 404417^2 + 135890^2 .

It is an emirp because it is prime and its reverse (989102910281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 182019201989 - 2²⁰ = 182018153413 is a prime.

It is a super-2 number, since 2×182019201989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182019201979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91009600994 + 91009600995.

It is an arithmetic number, because the mean of its divisors is an integer number (91009600995).

Almost surely, 2^182019201989 is an apocalyptic number.

It is an amenable number.

182019201989 is a deficient number, since it is larger than the sum of its proper divisors (1).

182019201989 is an equidigital number, since it uses as much as digits as its factorization.

182019201989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 182019201989 in words is "one hundred eighty-two billion, nineteen million, two hundred one thousand, nine hundred eighty-nine".